यदि 𝒙4+𝟏/𝒙𝟒  = 6887 हो, तो 𝒙 −𝟏/𝒙  का मान ज्ञात कीजिए -

  • 1

    8

  • 2

    9

  • 3

    11

  • 4

    13

Answer:- 2

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